

My understanding is that some people think abandonware is legal because you can’t be sued in the US by someone who doesn’t have legal standing in regards to the issue. If the owners don’t exist or don’t care, there’s nobody to do enforcement.
It’s still in violation of copyright law so long as the copyright hasn’t expired, but if nobody can come after you, then the law will not be enforced.
Yeah, there’s no question that when it comes to Nintendo there is none of their IP that is now abandonware